Example #1
0
 // 获取名为name的bucket
 public static Bucket getBucketByName(String name) {
   List<Bucket> buckets = conn.listBuckets();
   for (Bucket bucket : buckets) {
     if (bucket.getName().equalsIgnoreCase(name)) return bucket;
   }
   return null;
 }
Example #2
0
 // 列出所有buckets
 public static void listAllBuckets() {
   List<Bucket> buckets = conn.listBuckets();
   for (Bucket bucket : buckets) {
     System.out.println(
         bucket.getName() + "\t\t" + StringUtils.fromDate(bucket.getCreationDate()));
   }
 }
Example #3
0
  public static void createBucket(AmazonS3Client s3, String bucketName, String zone) {
    try {

      List<Bucket> bucketList = s3.listBuckets();

      for (Bucket bucket : bucketList) {
        // System.out.println(bucket.getName());
        if (bucketName.equalsIgnoreCase(bucket.getName())) {
          System.out.println("Using bucket " + bucketName);
          return;
        }
      }

      System.out.println("Created s3 bucket " + bucketName);
      s3.createBucket(bucketName);

      return;

    } catch (AmazonServiceException ase) {
      System.out.println("Caught Exception: " + ase.getMessage());
      System.out.println("Reponse Status Code: " + ase.getStatusCode());
      System.out.println("Error Code: " + ase.getErrorCode());
      System.out.println("Request ID: " + ase.getRequestId());
    }
  }
 @Override
 protected JsonArray serve(String filter, int limit) {
   JsonArray array = new JsonArray();
   try {
     AmazonS3 s3 = PersistS3.getClient();
     filter = Strings.nullToEmpty(filter);
     for( Bucket b : s3.listBuckets() ) {
       if( b.getName().startsWith(filter) )
         array.add(new JsonPrimitive(b.getName()));
       if( array.size() == limit) break;
     }
   } catch( IllegalArgumentException _ ) { }
   return array;
 }
Example #5
0
 // 列出某个bucket的所有objects
 public static void listObjectInBucket(Bucket bucket) {
   List<Bucket> buckets = conn.listBuckets();
   ObjectListing objects = conn.listObjects(bucket.getName());
   do {
     for (S3ObjectSummary objectSummary : objects.getObjectSummaries()) {
       System.out.println(
           objectSummary.getKey()
               + "\t"
               + objectSummary.getSize()
               + "\t"
               + StringUtils.fromDate(objectSummary.getLastModified()));
     }
     objects = conn.listNextBatchOfObjects(objects);
   } while (objects.isTruncated());
 }
Example #6
0
 // 列出有prefix前缀的所有objects
 public static void listObjectInBucketWithPrefix(Bucket bucket, String prefix) {
   ListObjectsRequest listObjectsRequest =
       new ListObjectsRequest().withBucketName(bucket.getName()).withPrefix(prefix);
   ObjectListing objects = conn.listObjects(listObjectsRequest);
   do {
     for (S3ObjectSummary objectSummary : objects.getObjectSummaries()) {
       System.out.println(
           objectSummary.getKey()
               + "\t"
               + objectSummary.getSize()
               + "\t"
               + StringUtils.fromDate(objectSummary.getLastModified()));
     }
     objects = conn.listNextBatchOfObjects(objects);
   } while (objects.isTruncated());
 }
Example #7
0
  public static void main(String[] args) throws Exception {
    System.out.println("===========================================");
    System.out.println("Welcome to the AWS Java SDK!");
    System.out.println("===========================================");

    init();

    try {
      /*
       * The Amazon EC2 client allows you to easily launch and configure
       * computing capacity in AWS datacenters.
       *
       * In this sample, we use the EC2 client to list the availability zones
       * in a region, and then list the instances running in those zones.
       */
      DescribeAvailabilityZonesResult availabilityZonesResult = ec2.describeAvailabilityZones();
      List<AvailabilityZone> availabilityZones = availabilityZonesResult.getAvailabilityZones();
      System.out.println("You have access to " + availabilityZones.size() + " availability zones:");
      for (AvailabilityZone zone : availabilityZones) {
        System.out.println(" - " + zone.getZoneName() + " (" + zone.getRegionName() + ")");
      }

      DescribeInstancesResult describeInstancesResult = ec2.describeInstances();
      Set<Instance> instances = new HashSet<Instance>();
      for (Reservation reservation : describeInstancesResult.getReservations()) {
        instances.addAll(reservation.getInstances());
      }

      System.out.println("You have " + instances.size() + " Amazon EC2 instance(s) running.");

      /*
       * The Amazon S3 client allows you to manage and configure buckets
       * and to upload and download data.
       *
       * In this sample, we use the S3 client to list all the buckets in
       * your account, and then iterate over the object metadata for all
       * objects in one bucket to calculate the total object count and
       * space usage for that one bucket. Note that this sample only
       * retrieves the object's metadata and doesn't actually download the
       * object's content.
       *
       * In addition to the low-level Amazon S3 client in the SDK, there
       * is also a high-level TransferManager API that provides
       * asynchronous management of uploads and downloads with an easy to
       * use API:
       *   http://docs.aws.amazon.com/AWSJavaSDK/latest/javadoc/com/amazonaws/services/s3/transfer/TransferManager.html
       */
      List<Bucket> buckets = s3.listBuckets();
      System.out.println("You have " + buckets.size() + " Amazon S3 bucket(s).");

      if (buckets.size() > 0) {
        Bucket bucket = buckets.get(0);

        long totalSize = 0;
        long totalItems = 0;
        /*
         * The S3Objects and S3Versions classes provide convenient APIs
         * for iterating over the contents of your buckets, without
         * having to manually deal with response pagination.
         */
        for (S3ObjectSummary objectSummary : S3Objects.inBucket(s3, bucket.getName())) {
          totalSize += objectSummary.getSize();
          totalItems++;
        }

        System.out.println(
            "The bucket '"
                + bucket.getName()
                + "' contains "
                + totalItems
                + " objects "
                + "with a total size of "
                + totalSize
                + " bytes.");
      }
    } catch (AmazonServiceException ase) {
      /*
       * AmazonServiceExceptions represent an error response from an AWS
       * services, i.e. your request made it to AWS, but the AWS service
       * either found it invalid or encountered an error trying to execute
       * it.
       */
      System.out.println("Error Message:    " + ase.getMessage());
      System.out.println("HTTP Status Code: " + ase.getStatusCode());
      System.out.println("AWS Error Code:   " + ase.getErrorCode());
      System.out.println("Error Type:       " + ase.getErrorType());
      System.out.println("Request ID:       " + ase.getRequestId());
    } catch (AmazonClientException ace) {
      /*
       * AmazonClientExceptions represent an error that occurred inside
       * the client on the local host, either while trying to send the
       * request to AWS or interpret the response. For example, if no
       * network connection is available, the client won't be able to
       * connect to AWS to execute a request and will throw an
       * AmazonClientException.
       */
      System.out.println("Error Message: " + ace.getMessage());
    }
  }
Example #8
0
  public static void main(String[] args) throws IOException {
    /*
     * This credentials provider implementation loads your AWS credentials
     * from a properties file at the root of your classpath.
     *
     * Important: Be sure to fill in your AWS access credentials in the
     *            AwsCredentials.properties file before you try to run this
     *            sample.
     * http://aws.amazon.com/security-credentials
     */
    AmazonS3 s3 = new AmazonS3Client(new ClasspathPropertiesFileCredentialsProvider());

    String bucketName = "my-first-s3-bucket-" + UUID.randomUUID();
    String key = "MyObjectKey";

    System.out.println("===========================================");
    System.out.println("Getting Started with Amazon S3");
    System.out.println("===========================================\n");

    try {
      /*
       * Create a new S3 bucket - Amazon S3 bucket names are globally unique,
       * so once a bucket name has been taken by any user, you can't create
       * another bucket with that same name.
       *
       * You can optionally specify a location for your bucket if you want to
       * keep your data closer to your applications or users.
       */
      System.out.println("Creating bucket " + bucketName + "\n");
      s3.createBucket(bucketName);

      /*
       * List the buckets in your account
       */
      System.out.println("Listing buckets");
      for (Bucket bucket : s3.listBuckets()) {
        System.out.println(" - " + bucket.getName());
      }
      System.out.println();

      /*
       * Upload an object to your bucket - You can easily upload a file to
       * S3, or upload directly an InputStream if you know the length of
       * the data in the stream. You can also specify your own metadata
       * when uploading to S3, which allows you set a variety of options
       * like content-type and content-encoding, plus additional metadata
       * specific to your applications.
       */
      System.out.println("Uploading a new object to S3 from a file\n");
      s3.putObject(new PutObjectRequest(bucketName, key, createSampleFile()));

      /*
       * Download an object - When you download an object, you get all of
       * the object's metadata and a stream from which to read the contents.
       * It's important to read the contents of the stream as quickly as
       * possibly since the data is streamed directly from Amazon S3 and your
       * network connection will remain open until you read all the data or
       * close the input stream.
       *
       * GetObjectRequest also supports several other options, including
       * conditional downloading of objects based on modification times,
       * ETags, and selectively downloading a range of an object.
       */
      System.out.println("Downloading an object");
      S3Object object = s3.getObject(new GetObjectRequest(bucketName, key));
      System.out.println("Content-Type: " + object.getObjectMetadata().getContentType());
      displayTextInputStream(object.getObjectContent());

      /*
       * List objects in your bucket by prefix - There are many options for
       * listing the objects in your bucket.  Keep in mind that buckets with
       * many objects might truncate their results when listing their objects,
       * so be sure to check if the returned object listing is truncated, and
       * use the AmazonS3.listNextBatchOfObjects(...) operation to retrieve
       * additional results.
       */
      System.out.println("Listing objects");
      ObjectListing objectListing =
          s3.listObjects(new ListObjectsRequest().withBucketName(bucketName).withPrefix("My"));
      for (S3ObjectSummary objectSummary : objectListing.getObjectSummaries()) {
        System.out.println(
            " - " + objectSummary.getKey() + "  " + "(size = " + objectSummary.getSize() + ")");
      }
      System.out.println();

      /*
       * Delete an object - Unless versioning has been turned on for your bucket,
       * there is no way to undelete an object, so use caution when deleting objects.
       */
      System.out.println("Deleting an object\n");
      s3.deleteObject(bucketName, key);

      /*
       * Delete a bucket - A bucket must be completely empty before it can be
       * deleted, so remember to delete any objects from your buckets before
       * you try to delete them.
       */
      System.out.println("Deleting bucket " + bucketName + "\n");
      s3.deleteBucket(bucketName);
    } catch (AmazonServiceException ase) {
      System.out.println(
          "Caught an AmazonServiceException, which means your request made it "
              + "to Amazon S3, but was rejected with an error response for some reason.");
      System.out.println("Error Message:    " + ase.getMessage());
      System.out.println("HTTP Status Code: " + ase.getStatusCode());
      System.out.println("AWS Error Code:   " + ase.getErrorCode());
      System.out.println("Error Type:       " + ase.getErrorType());
      System.out.println("Request ID:       " + ase.getRequestId());
    } catch (AmazonClientException ace) {
      System.out.println(
          "Caught an AmazonClientException, which means the client encountered "
              + "a serious internal problem while trying to communicate with S3, "
              + "such as not being able to access the network.");
      System.out.println("Error Message: " + ace.getMessage());
    }
  }
Example #9
0
  // 将文件f放到bucket中,名为name; 权限为公共读写。
  public static void putObjectInBucket(Bucket bucket, String name, File f) {

    conn.putObject(bucket.getName(), name, f);
    conn.setObjectAcl(bucket.getName(), name, CannedAccessControlList.PublicReadWrite);
  }
Example #10
0
 // 获取bucket中名为name的object的下载地址
 public static URL genarateUrlInBucketForObject(Bucket bucket, String name) {
   GeneratePresignedUrlRequest request = new GeneratePresignedUrlRequest(bucket.getName(), name);
   // System.out.println(conn.generatePresignedUrl(request));
   return conn.generatePresignedUrl(request);
 }
Example #11
0
 // 从bucket中删除名为name的object
 public static void delObjectFromBucket(Bucket bucket, String name) {
   conn.deleteObject(bucket.getName(), name);
 }
Example #12
0
 // 从bucket中下载object name,并放在"/home/zforCeph/download"文件夹下
 public static void getObjectFromBucket(Bucket bucket, String path, String name) {
   conn.getObject(new GetObjectRequest(bucket.getName(), name), new File(path + name));
 }